Abstract
Thermally assisted hydrolysis and methylation-gas chromatography (THM-GC) in the presence of trimethylsulfonium hydroxide (TMSH) was applied to the determination of fatty acid composition of lipids containing polyunsaturated fatty acid residues. By using this method, the polyunsaturated fatty acid (PUFA) components as well as saturated and monounsaturated fatty acid residues were observed almost quantitatively as their methyl esters on the resulting chromatogram without causing any appreciable isomerization and/or degradation. On the basis of these peak intensities, the fatty acid compositions in soybean oil and sardine oil samples were rapidly and precisely estimated with less than 6% of the relative standard deviations even for PUFA components such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
